volcanism

noun

vol·​ca·​nism ˈväl-kə-ˌni-zəm 

ˈvȯl-

: volcanic action or activity

Examples of volcanism in a Sentence

Recent Examples on the Web

Those insights could help scientists better understand ancient volcanism on Mars, Venus, and Earth's moon, whose landscapes were shaped by massive eruptions billions of years ago. — Samantha Mathewson, Space.com, 24 July 2026

This heat drives more melting and more basaltic volcanism, a process that plays out not just in the minutes-to-hours timescale of the actual collision, but in tens or even hundreds of millions of years afterward. — Jacek Krywko, ArsTechnica, 5 July 2026

But deriving a unified theory of volcanism will require a geologic Manhattan Project. — Quanta Magazine, 8 May 2026

Rocks nabbed by China’s robotic lunar sample return missions, Chang’e 5 and 6, indicate active volcanism there up until at least two billion years ago. — Robin George Andrews, Scientific American, 7 Apr. 2026

Word History

First Known Use

1830, in the meaning defined above

Rhymes for volcanism

• autism
• fascism
• racism
• sikhism
• sophism
• statism
• sufism
• thomism
• tourism
• tropism
• abolitionism
• aldosteronism